Qt Demonstrations

This is the list of demonstrations in Qt's demos directory. These are larger and more complicated programs than the Qt 范例 and are used to highlight certain features of Qt.

Getting an Overview
	If you run the Examples and Demos Launcher , you'll see many of Qt's widgets in action. The Qt Widget 图库 also provides overviews of selected Qt widgets in each of the styles used on various supported platforms.

Getting an Overview

If you run the Examples and Demos Launcher , you'll see many of Qt's widgets in action.

The Qt Widget 图库 also provides overviews of selected Qt widgets in each of the styles used on various supported platforms.

If you are new to Qt, and want to start developing applications, you should probably start by going through the 教程 .

Mobile Applications

These are demonstrations of some of the capabilities of Qt Quick and Mobility to create feature rich mobile applications.

Guitar Tuner - a guitar tuner made with a QML frontend and a Mobility based backend
Quick Hit - a game that uses multimedia and Qt Quick
Qt Bubble Level - a game that utilizes hardware sensors for effects
QCamera - a camera application that accesses mobile contacts and networking

描绘

合成模式 demonstrates the range of composition modes available with Qt.
向量变形 demonstrates effects that are made possible with a vector-oriented paint engine.
渐变 shows the different types of gradients that are available in Qt.
路径描边 shows Qt's built-in dash patterns and shows how custom patterns can be used to extend the range of available patterns.
仿射变换 demonstrates the different affine transformations that can be used to influence painting operations.
Arthur Plugin shows the widgets from the other painting demos packaged as a custom widget plugin for Qt Designer .

Item Views

Interview shows the same model and selection being shared between three different views.
电子表格 demonstrates the use of a table view as a spreadsheet, using custom delegates to render each item according to the type of data it contains.

SQL

Books shows how Qt's SQL support and model/view integration enables the user to modify the contents of a database without requiring knowledge of SQL.
SQL Browser demonstrates a console for executing SQL statements on a live database and provides a data browser for interactively visualizing the results.

Rich Text

文本编辑 shows Qt's rich text editing features and provides an environment for experimenting with them.

主窗口

主窗口 shows Qt's extensive support for main window features, such as tool bars, dock windows, and menus.
Mac Main Window shows how to create main window applications that has the same appearance as other Mac OS X applications.

图形视图

40000 个芯片使用图形视图框架 to efficiently display a large number of individual graphical items on a scrolling canvas and highlighting features including rotation, zooming, level of detail control, and item selection.
嵌入式对话框 showcases Qt 4.4's Widgets on the Canvas feature by embedding several fully-functional dialogs in a scene.
Boxes showcases Qt's OpenGL support and the integration with the 图形视图框架 .

工具

撤消框架 demonstrates how Qt's undo framework is used to provide advanced undo/redo functionality.

WebKit

Web 浏览器 demonstrates how Qt's QtWebKit module can be used to implement a simple Web browser.

Phonon

媒体播放器 demonstrates how the Phonon module can be used to implement a basic media player application.

注意： The Phonon demos are currently not available for the MinGW platform.

多媒体

Spectrum Analyzer demonstrates how the QtMultimedia 模块 can be used to capture and play back an audio stream, at the same time allowing the application to access the raw audio data. This application analyzes the audio stream in order to display a frequency spectrum.

动画

Sub-Attaq demonstrates the features of the 动画框架 and state machine framework in the production of a simple game.

嵌入式平台

Anomaly is a small screen browser with kinetic scrolling.
Embedded Desktop Services shows how to open documents using the applications associated with their file types.
Digiflip is a digital watch with transition effects.
Embedded SVG Viewer shows how to display SVG drawings on embedded devices.
Flickable List shows how to display a list with kinetic scrolling.
Flight Info fetches information about aircraft flights from the Web.
Fluid Launcher demo application launcher for embedded screens
Light Maps demonstrates OpenStreetMap integration with WebKit .
Ray Casting demonstrates the use of ray casting with the 图形视图框架 .
Embedded Styles demonstrates the use of styles.
Weather Info fetches weather information from the Web.